Jason Kelce believes a lack of accountability is the root of the Philadelphia Eagles' struggles.

"Last year, it just seemed like everybody was clicking. We had guys like Brent Celek who had been here a long time who was very accountable, Torrey Smith who had been in the league for a long time, very accountable. Mack Hollins was a guy that gave great effort," the lineman said. "LeGarrette Blount and all of these running backs that, they had their limited amount of stuff that they had to know, but they knew what to do, and they knew how to do those things. That's what we're missing. We're missing that accountability."

Kelce stressed that he isn't suggesting current players on the team are "bad guys" or giving poor effort, but that a mix of departures and injuries have depleted them in areas both tangible and intangible.

"This isn't just players, this is coaches, this is everybody. Everybody takes accountability in making sure that everybody is ready to go. From a players' standpoint, it's on you to make sure that you're watching the film, you're doing everything during the week necessary for you to improve, to make sure that you understand the finer coaching points, every little detail, so that when you're in the middle of the game, you're not playing slow or apprehensive, you know exactly what you have to do and you can go 100 percent and give great effort. And it's also on the coaches to make sure everybody's ready to go," he said.